JSON & YAML Viewer

Paste and edit JSON or YAML, validate instantly, format/compact, inspect a collapsible tree, then download the result.

Editor
Tree View
Paste JSON or YAML and click Format or Validate to render the tree.

Free vs. Premium (One-Time $5)

Feature Free Premium
Format, Validate & Convert JSON/YAML
Collapsible Tree View & Search
Generate Share Links
Share Link Expiry 1 hour Never expire
Active Share Links Limit 5 max Unlimited
Priority Support
Future Premium Features

Note: Premium access is a one-time $5 purchase. No subscription. No recurring charges.

Free Online JSON and YAML Viewer

This viewer helps you validate, format, compact, and inspect JSON or YAML data directly in your browser. It is useful for API debugging, webhook payload checks, configuration review, and quick data exploration while developing backend or frontend applications.

What you can do with this JSON/YAML tool

  • Validate JSON and YAML syntax while you type
  • Convert minified JSON into readable, indented JSON or YAML
  • Compact formatted JSON into a minified single-line output
  • Inspect nested objects and arrays in a collapsible tree view
  • Upload JSON/YAML files, copy output, and download cleaned files

If you are searching for a simple JSON formatter, YAML formatter, validator, or tree viewer, this page combines those features in one lightweight interface without requiring account signup.